Metallic components form a surface __________ when exposed to sulfur compounds. This may react with air (oxygen) and moisture to form sulfur acids (polythionic acid).
A) Oxide
B) Sulfide scale
C) Sulfate scale
D) Caustic scale

Question

Quizplus · Accepted Answer

Metallic components form a surface sulfide scale when exposed to sulfur compounds. This scale may react with air (oxygen) and moisture to form sulfur acids (polythionic acid).

Metallic Components Form a Surface __________ When Exposed to Sulfur